Have your regulators been serviced recently.
It’s concerning to still see Apeks regulators coming in that have been serviced and not had the 2nd stage diaphragms changed.
This is a required update by Apeks that has been in place for over 10 years.
The diaphragm on the right is the old diaphragm that must be removed and replaced with a new one, shown on left.
The old ones tear easily causing a wet breath and the plastic disk misshapes.
You can see the tear in the middle photo and the misshaped disk in the 1st photo.
This regulator had been serviced recently in the United States and we have now upgraded it to the current diaphragm.